[INFO] cloning repository https://github.com/wahtak/rust-mandelbrot [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wahtak/rust-mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwahtak%2Frust-mandelbrot", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwahtak%2Frust-mandelbrot'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 24b3733a697b095f90e8de6f920251efc7e2fe6e [INFO] testing wahtak/rust-mandelbrot against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwahtak%2Frust-mandelbrot" "/workspace/builds/worker-8/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wahtak/rust-mandelbrot on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wahtak/rust-mandelbrot [INFO] finished tweaking git repo https://github.com/wahtak/rust-mandelbrot [INFO] tweaked toml for git repo https://github.com/wahtak/rust-mandelbrot written to /workspace/builds/worker-8/source/Cargo.toml [INFO] crate git repo https://github.com/wahtak/rust-mandelbrot already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 90fe04353661b647d3c587a67d5dc684a3e4ed7a6b679607e7604a71ae198c31 [INFO] running `Command { std: "docker" "start" "-a" "90fe04353661b647d3c587a67d5dc684a3e4ed7a6b679607e7604a71ae198c31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "90fe04353661b647d3c587a67d5dc684a3e4ed7a6b679607e7604a71ae198c31", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "90fe04353661b647d3c587a67d5dc684a3e4ed7a6b679607e7604a71ae198c31", kill_on_drop: false }` [INFO] [stdout] 90fe04353661b647d3c587a67d5dc684a3e4ed7a6b679607e7604a71ae198c31 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fa3ca3a4b8589a1a19f8360044dd40e6563c16206468b7c94b3aa84c497ceeb2 [INFO] running `Command { std: "docker" "start" "-a" "fa3ca3a4b8589a1a19f8360044dd40e6563c16206468b7c94b3aa84c497ceeb2", kill_on_drop: false }` [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling cfg-if v0.1.7 [INFO] [stderr] Compiling libc v0.2.53 [INFO] [stderr] Compiling proc-macro2 v0.4.28 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling rayon-core v1.4.1 [INFO] [stderr] Compiling memoffset v0.2.1 [INFO] [stderr] Compiling syn v0.15.33 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Compiling rayon v1.0.3 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Compiling lzw v0.10.0 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Compiling bitflags v1.0.4 [INFO] [stderr] Compiling crossbeam-utils v0.2.2 [INFO] [stderr] Compiling gif v0.10.1 [INFO] [stderr] Compiling num-iter v0.1.37 [INFO] [stderr] Compiling png v0.14.1 [INFO] [stderr] Compiling crossbeam-epoch v0.3.1 [INFO] [stderr] Compiling num_cpus v1.10.0 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Compiling crossbeam-deque v0.2.0 [INFO] [stderr] Compiling num v0.2.0 [INFO] [stderr] Compiling jpeg-decoder v0.1.15 [INFO] [stderr] Compiling num-derive v0.2.5 [INFO] [stderr] Compiling tiff v0.2.2 [INFO] [stderr] Compiling image v0.21.1 [INFO] [stderr] Compiling rust_mandelbrot v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/draw.rs:7:30 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn draw(color_function: &Fn(u32, u32) -> image::Rgb) -> image::RgbImage { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u32, u32) -> image::Rgb` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/mandelbrot.rs:21:49 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn mandelbrot_function(c: Complex64) -> Box Complex64> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Complex64) -> Complex64` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/mandelbrot.rs:26:16 [INFO] [stdout] | [INFO] [stdout] 26 | function: &Fn(T) -> T, [INFO] [stdout] | ^^^^^^^^^^ help: use `dyn`: `dyn Fn(T) -> T` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `draw` [INFO] [stdout] --> src/draw.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn draw(color_function: &Fn(u32, u32) -> image::Rgb) -> image::RgbImage { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 15.63s [INFO] running `Command { std: "docker" "inspect" "fa3ca3a4b8589a1a19f8360044dd40e6563c16206468b7c94b3aa84c497ceeb2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fa3ca3a4b8589a1a19f8360044dd40e6563c16206468b7c94b3aa84c497ceeb2", kill_on_drop: false }` [INFO] [stdout] fa3ca3a4b8589a1a19f8360044dd40e6563c16206468b7c94b3aa84c497ceeb2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b72f674971f88b84f2566658a17da1baf37e938e2067a999319a9b47eb612acb [INFO] running `Command { std: "docker" "start" "-a" "b72f674971f88b84f2566658a17da1baf37e938e2067a999319a9b47eb612acb", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rust_mandelbrot v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/draw.rs:7:30 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn draw(color_function: &Fn(u32, u32) -> image::Rgb) -> image::RgbImage { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u32, u32) -> image::Rgb` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/mandelbrot.rs:21:49 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn mandelbrot_function(c: Complex64) -> Box Complex64> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Complex64) -> Complex64` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/mandelbrot.rs:26:16 [INFO] [stdout] | [INFO] [stdout] 26 | function: &Fn(T) -> T, [INFO] [stdout] | ^^^^^^^^^^ help: use `dyn`: `dyn Fn(T) -> T` [INFO] [stdout] | [INFO] [stdout] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stdout] = note: for more information, see issue #80165 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.13s [INFO] running `Command { std: "docker" "inspect" "b72f674971f88b84f2566658a17da1baf37e938e2067a999319a9b47eb612acb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b72f674971f88b84f2566658a17da1baf37e938e2067a999319a9b47eb612acb", kill_on_drop: false }` [INFO] [stdout] b72f674971f88b84f2566658a17da1baf37e938e2067a999319a9b47eb612acb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 723c026987149ff11347fd8552c1d6999e91285d8d5bc95f9a9db3b5aa6a28a2 [INFO] running `Command { std: "docker" "start" "-a" "723c026987149ff11347fd8552c1d6999e91285d8d5bc95f9a9db3b5aa6a28a2", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/draw.rs:7:30 [INFO] [stderr] | [INFO] [stderr] 7 | pub fn draw(color_function: &Fn(u32, u32) -> image::Rgb) -> image::RgbImage { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u32, u32) -> image::Rgb` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stderr] = note: for more information, see issue #80165 [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/mandelbrot.rs:21:49 [INFO] [stderr] | [INFO] [stderr] 21 | pub fn mandelbrot_function(c: Complex64) -> Box Complex64> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Complex64) -> Complex64` [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stderr] = note: for more information, see issue #80165 [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/mandelbrot.rs:26:16 [INFO] [stderr] | [INFO] [stderr] 26 | function: &Fn(T) -> T, [INFO] [stderr] | ^^^^^^^^^^ help: use `dyn`: `dyn Fn(T) -> T` [INFO] [stderr] | [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition! [INFO] [stderr] = note: for more information, see issue #80165 [INFO] [stderr] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.89s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rust_mandelbrot-36d71856f33af16e) [INFO] [stdout] [INFO] [stdout] running 7 tests [INFO] [stdout] test draw::tests::float_range_iterates_over_range ... ok [INFO] [stdout] test mandelbrot::tests::mandelbrot_function_diverges_for_some_constant ... ok [INFO] [stdout] test mandelbrot::tests::measure_divergence_returns_none_when_number_of_iterations_exceeds_maximum ... ok [INFO] [stdout] test mandelbrot::tests::mandelbrot_function_evaluates_correctly_for_complex_numbers ... ok [INFO] [stdout] test mandelbrot::tests::mandelbrot_function_does_not_diverge_for_some_constant ... ok [INFO] [stdout] test mandelbrot::tests::measure_divergence_returns_number_of_iterations_after_which_value_is_out_of_bound ... ok [INFO] [stdout] test draw::tests::draw_creates_rbg_image_from_color_function ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "723c026987149ff11347fd8552c1d6999e91285d8d5bc95f9a9db3b5aa6a28a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "723c026987149ff11347fd8552c1d6999e91285d8d5bc95f9a9db3b5aa6a28a2", kill_on_drop: false }` [INFO] [stdout] 723c026987149ff11347fd8552c1d6999e91285d8d5bc95f9a9db3b5aa6a28a2